Oiler for shafts.



I. W. DOEG.

OILEB. POR SHAFTS.

Patented Apr. 21, 1914 APPLICATION FILED NOV. 8, 1912.

COLUMBIA PLANOGRAPH co\v^smNGToN, D. c.

ISSACHAR W. DOEGr, OF EXETER, HAMPSHIRE.

OILER FOR SHAFTS.

Specification of Letters Patent.

Patented Apr. 21, 1914.

Application led November 8v, 1912. Seri-a1 No. 730,193.

To all whom it may concern.'

Be it known that I, IssAcHAR W. Done,

a citizen of the United States, residing at Exeter, county of Rockingham, State of New Hampshire, haveinvented an Improvement in Oilers for Shafts, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts. t

This invention relates to an oiler for shafts and has for its object to provide a novel oiler which is simple in construction and effective in operation and comparatively inexpensive to manufacture. I

The features wherein my invention resides will first be described and then pointed out in the appended claims.

Referring to the drawings, Figure 1 is a view showing a bearing in section and showing one embodiment of -my improved oiler applied thereto; Fig. 2 is a section on the line www, Fig. 1; Fig. 3 is a section on the line jz/-y, Fig. 1. n

In the drawings 1 designates the shaft to be oiled and 2 the bearing in which the shaft rotates.

My improved oiler is of that type which includes a wick tube that is supported from the bearing and carries a wick, one end of which tips into an oil cup and the other end of which engages the shaft 1, said wick operating to keep the shaft oiled by capillary attraction. The wick is shown at 3 and it is contained in and extends longitudinally through a wick tube 4, the wick preferably extending beyond the upper end of the wick tube, as shown at 5. The upper end of the wick tube occupies a bore or opening 6 formed in the bearing 2 and the wick tube is yieldingly sustained so that the end 5 of the wick will be yieldingly held against the shaft 1. The wick may be retained in the wick tube in various ways, and as herein shown, the upper end of the wick tube is provided with inwardly-bent teeth or fingers 7 which engage the wick and prevent the latter from being pulled downwardly therethrough while permitting the wick to be drawn upwardly.

The wick tube 4 is yieldingly sustained by a wick tube carrier 8 which is in the form of a tubular member screw-threaded at its upper end, as at 9, to have screw-threaded engagement with the interior of the bore 6.

The lower end of the carrier 8 has secured thereto acoiled spring 10, the other end of which is adjustably secured to the lower end of the wick tube, said springacting as a yieldable connection between the wick tube and its carrier. As herein shown the lower end of the carrier 8 is formed with a spiral groove 11 on its exterior surface in which are received the upper turns of the coiled spring 10, and the lower end of the wick tube is also provided with a spiral groove 12 in which the lower coils of tne spring 10 are received. The lower coils of the spring are shown as of smaller diameter than the upper coils so as to fit the groove 12. This manner of connecting the spring to the wick tube is one which permits of ready adjustment of the wick tube relative to its carrier, for by turning the wicktube in the carrier the former will be screwed up and down in the lower coils of the spring, and it can thus be adjusted so as to bring the portion 5 of the wick to bear against the shaft with the proper pressure.

The wick tube and its carrier as above described constitute an oiling appliance which could be used where the bearing is equipped with a stationary oil can by simply securing the wick tube carrier to the shaft in such a way that the lower end of the wick will be submerged in the oil iii the oil can.

Inthose bearings where no drip pan is provided, I propo-se to use an oil cup in connection with the wick tube and its carrier, and in the preferred embodiment of my invention this oil cup will be sustained by the wick tube carrier and will inclose the spring 10. I will also preferably make the oil cup of transparent material so that the amount of oil therein is readily visible. In the embodiment herein shown the oil cup is designated by13 and it is made of glass and is inclosed in a protecting casing 14 that has one or more sight openings 15 formed therein through which the oil can be seen. The casing 14 extends above the glass top 13 and is closed by a cover 16 having a central opening through which the wick tube carrier ex tends. In the present embodiment I have shown the protective casing 14 as being intcrnally screw-threaded at its upper endand the cover 16 is provided with an `externally screw-threaded rim which screws into the upper end of the casing. Said cover has y associated therewith a resilient locking arm 17 which is adapted to engage any one of a number of notches 18 formed in the top of the casing thereby to lock the cover in position. The locking arm extends beyond the casing, as shown at 19, to provide a. hand-- hold by which said arm may be lifted out of the locking notches 18. This locking arm is shown as extending through a notch 20 formed in the rim 21 of the cover, and as being connected to the cover by being coiled about the central boss 22 thereof, as shown at 23.

The wick tube carrier 9 is shown as having a collar or flange 24 on which the cover rests, said flange thus serving as a support for the oil cup. The oil cup is thus swiveled to the carrier so that it can be turned thereabout, and as the collar 24 is situated above the spring 10, said spring will be iiiclosed entirely within the oil cup.

In some long bearings it is desirable to supply oil at two separate places, as shown in Fig. 1, and in such case I propose to use two oiling devices, as shown in Fig. 1. In order to prevent the oil from being siphoned over from one oil cup to the other I propose to provide a connection between the oil cups so as to maintain the oil at the same level in both. This connection is herein shown as a pipe 25 which leads into the bottom of each oil cup, and in order to provide for this connection I will preferably make the oil cup with the construction shown in Fig. 1

Y wherein the casing 14 is formed with an opening 26 in its bottom and with a screwthreaded nipple 27 to which the pipe 5 may be coupled by an ordinary union 28. W'here this co-nstruction is provided the glass cock 13 Vis made without a bottom and in the form of a glass cylinder, and to prevent leakage of oil I propose to interpose a gasket 29 beneath the cylinder which makes a tight joint therewith. The glass cylinder 13 is heldfirmly against the gasket 29 by means of a clamping ring 30 which screws into the upper end of the casing 14 and engages the vtop of the cylinder 13. If this double arrangement of oil cup is not desired then the glass member 13 may be made with a solid bottom instead of with an open bottom.

` The cover 16 is preferably made with the hollowing or concaved upper surface and is provided with a drip opening 33 so that any oilwhich runs down the wick tube will be caught in the concave portion of the cover and will be returned to the cup through the drip opening.

I may also employ a tubular wick which Y has several small wires 34 running through vI claim as new and desire to secure by Letters Patent is 2- 1. In an oiler, the combination with a tubular wick tube carrier adapted to be secured to a bearing, of a wick tube extending longitudinally through said carrier and .having an external spiral groove at its lower lend, a wick extending longitudinallythrough said wick tube, and a spiral spring connected at its upper end to said carrier, the lower vcoils of said spring engaging said groove lthereby yieldingly connecting the wick tube vto its carrier and permitting an adjustment of said wick tube relative to the carrier.

2. In an oiler for shafts, the combination with a wick tube carrier -adapted to be secured to the shaft bearing, of an oil cup susvtained by said carrier, a wick tube extending through said carrier and having` its .lower end entering the oil cup, said lower rend having a spiral groove foi-ined on its exterior, a wick extending longitudinally through said carrier, and a spiral spring secured at its upper end to the carrier and "having its lower turns confined in said fgroove.

3. In an oiler for shafts, the combination with a wick tube carrier adapted to be sc- `cured to the shaft bearing, of an oil cup swiveled on said carrier, a wick tube extending through said carrier and having its lower end entering the oil cup, said lower end having a spiral groove formed on its exterior, a wick extending longitudinally through said carrier, and a spiral spring secured at its upper end to the carrier and having its lower turns confined in said groove.

4. In an oiler for shafts, the combination with a bearing, of a wick tube carrier sustained thereby and provided with a collar, of a wick tube extending through said carrier, a wick carried by said tube, the lower end of said wick tube having a spiral groove, a coiled spring connected at its upper end to the wick tube carrier and having its lower turns coniined in said groove, and an oil cup having a cover through which the carrier extends and which is sustained by said collar.

In an oiler for shafts, the combination with a bearing, of a wick tube carrier sustained thereby and provided with a collar, of a wick tube extending through said carrier, a wick carried by said tube, the lower end of said wick tube having a spiral groove, a

coiled spring connected at its upper end to the wick tube carrier and having its lower turns coniined in said groove, and an oil cup having a cover removably sustained thereby and provided with a bearing through which the carrier extends, said cover being sustained by said collar.

6. In an oiler for shafts, the combination with a wick tube carrier having a supporting flange, of a wick tube extending therethrough and yieldingly connected thereto, a wick in said tube, an oil cup having an interiorly screw-threaded portion and locking notches, a cover having exterior screwthreads engaging said portion, freely rotatable on the wick carrier and sustained by said flange, a resilient locking arm carried by said cover and adapted to engage one of said notches to lock the cover in place.

7. In an oiler, the combination with an oil cup comprising an inner transparent oil receptacle, an outer protective shell having sight openings, a clamping ring screwthreaded into said shell and engaging the top edge of the inner transparent receptacle for holding the latter in place, a cover screwthreaded to the protective shell, a wick tube carrier extending through the cover and having provision for attachment to a bearing, said carrier supporting the oil cup, and a wick tube extending up through the wick tube carrier and yieldingly connected thereto.

8. In an oiler, the combination with an oil cup comprising an inner transparent oil receptacle, an outer protective shell having sight openings, a clamping ring screwthreaded into said shell and engaging the top edge of the inner transparent receptacle for holding the latter in place, a cover screwthreaded to the protective shell, a wick tube carrier extending through the cover and having provision for attachment to a bearing, said carrier supporting the oil cup, and a wick tube extending up through the wick tube carrier and yieldingly connected thereto within the oil cup.

9. In an oiler, the combination with an oil cup comprising an inner transparent oil receptacle, an outer protective shell having sight openings, a clamping ring screwthreaded into said shell and engaging the top edge of the inner transparent receptacle for holding the latter in place, a cover screwthreaded to the protective shell, a wick tube carrier extending through the cover and having provision for attachment to a bearing, and also having a supporting flange on which the oil cup is sustained, and a wick tube extending up through the wick tube carrier and yieldingly connected thereto within the oil cup.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

ISSACI-IAR W. DOEG.

Witnesses:

EDWIN Gr. EAsTMAN, PnnLnY GARDNER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

